345231145 has 16 divisors (see below), whose sum is σ = 473961600. Its totient is φ = 236479104.

The previous prime is 345231143. The next prime is 345231157. The reversal of 345231145 is 541132543.

It is a cyclic number.

It is not a de Polignac number, because 345231145 - 2¹ = 345231143 is a prime.

It is a super-2 number, since 2×345231145² = 238369086956022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345231143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32014 + ... + 41416.

It is an arithmetic number, because the mean of its divisors is an integer number (29622600).

Almost surely, 2^345231145 is an apocalyptic number.

345231145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345231145 is a deficient number, since it is larger than the sum of its proper divisors (128730455).

345231145 is a wasteful number, since it uses less digits than its factorization.

345231145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10464.

The product of its digits is 7200, while the sum is 28.

The square root of 345231145 is about 18580.3967933949. The cubic root of 345231145 is about 701.5145065936.

Adding to 345231145 its reverse (541132543), we get a palindrome (886363688).

The spelling of 345231145 in words is "three hundred forty-five million, two hundred thirty-one thousand, one hundred forty-five".